Question

Arrange the steps in order to describe how photons and carbon dioxide (CO2) contribute to the warming of Earth.

Answer 1

The sequence is in the following order;

1. The sun radiated sunlight (visible) photons
2. Photons from the sun strike the earth and become infrared photons
3. Earth radiates infrared photons into the atmosphere
4. CO2 in the atmosphere absorb infrared photons
5. CO2 in the atmosphere emit infrared photons back towards earth